One vertex per element, one color per generator, with an edge from x to x·s.
(2,5)(6,8)(9,10,15,16)(11,12,14,13)(17,18,20,22)(19,23,24,21)(26,29)(30,32)(9,11,15,14)(10,13,16,12)(19,24)(21,23)(25,26,28,29)(27,30,31,32)(9,12,15,13)(10,11,16,14)(17,18)(19,21)(20,22)(23,24)(25,27,28,31)(26,30,29,32)(1,2,4,5)(3,6,7,8)(9,13,15,12)(10,11,16,14)(17,19)(18,21)(20,24)(22,23)(25,26)(27,30)(28,29)(31,32)(1,3,4,7)(2,6,5,8)(9,14,15,11)(10,12,16,13)(17,18)(19,21)(20,22)(23,24)(25,27)(26,30)(28,31)(29,32)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.